Method 1613 Clean-up Standard, 8ng/ml in Nonane, 20ml Back Catalog number: EDF-6999-10X Availability: In the manufacturer's stock Price on request - + Recommended 678218 Isoproturon-desmethyl, 100 µg/ml, Acetonitrile, 1ml Price on request 50212 Total Phosphorus (P) Price on request 11687.12-100-IO 2,2',3,6'-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request